FR759332A - Improvements to thermally controlled automatic alarms - Google Patents

Improvements to thermally controlled automatic alarms

Info

Publication number
FR759332A
FR759332A FR759332DA FR759332A FR 759332 A FR759332 A FR 759332A FR 759332D A FR759332D A FR 759332DA FR 759332 A FR759332 A FR 759332A
Authority
FR
France
Prior art keywords
controlled automatic
thermally controlled
automatic alarms
alarms
thermally
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
Other languages
French (fr)
Inventor
Benjamin James Franklin
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed filed Critical
Application granted granted Critical
Publication of FR759332A publication Critical patent/FR759332A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K1/00—Devices in which sound is produced by striking a resonating body, e.g. bells, chimes or gongs
    • G10K1/06—Devices in which sound is produced by striking a resonating body, e.g. bells, chimes or gongs the resonating devices having the shape of a bell, plate, rod, or tube
    • G10K1/062—Devices in which sound is produced by striking a resonating body, e.g. bells, chimes or gongs the resonating devices having the shape of a bell, plate, rod, or tube electrically operated
    • G10K1/063—Devices in which sound is produced by striking a resonating body, e.g. bells, chimes or gongs the resonating devices having the shape of a bell, plate, rod, or tube electrically operated the sounding member being a bell
    • G10K1/064—Operating or striking mechanisms therefor

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
FR759332D 1933-08-07 1933-08-07 Improvements to thermally controlled automatic alarms Expired FR759332A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR759332T 1933-08-07

Publications (1)

Publication Number Publication Date
FR759332A true FR759332A (en) 1934-02-01

Family

ID=9167172

Family Applications (1)

Application Number Title Priority Date Filing Date
FR759332D Expired FR759332A (en) 1933-08-07 1933-08-07 Improvements to thermally controlled automatic alarms

Country Status (1)

Country Link
FR (1) FR759332A (en)

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